How Federal Tax Brackets Work in 2026: A Simple Explanation
The U.S. federal income tax is progressive, but most people misunderstand how brackets actually apply. Here's a clear walkthrough with real numbers.
How Federal Tax Brackets Work in 2026: A Simple Explanation
The U.S. federal income tax is progressive, but most people misunderstand how that actually works. A widely held myth says, "If I make one dollar more and cross into the next bracket, I'll lose money to taxes." That's not how it works — and the difference matters once you grasp it.
This guide walks through the 2025 federal tax brackets (the ones you'll use to file in early 2026), with real-number examples, step by step.
The 2025 federal tax brackets
For tax year 2025, the IRS publishes seven brackets. Here are the brackets for single filers:
| Rate | Income range |
|---|---|
| 10% | $0 – $11,600 |
| 12% | $11,601 – $47,150 |
| 22% | $47,151 – $100,525 |
| 24% | $100,526 – $191,950 |
| 32% | $191,951 – $243,725 |
| 35% | $243,726 – $609,350 |
| 37% | $609,351+ |
Married filing jointly has wider brackets — roughly double for the lower rates:
| Rate | Income range |
|---|---|
| 10% | $0 – $23,200 |
| 12% | $23,201 – $94,300 |
| 22% | $94,301 – $201,050 |
| 24% | $201,051 – $383,900 |
| 32% | $383,901 – $487,450 |
| 35% | $487,451 – $731,200 |
| 37% | $731,201+ |
These brackets are adjusted for inflation each year. Numbers above are the official IRS figures from Revenue Procedure 2024-40.
How brackets actually apply
Here's the key thing: only the income inside each bracket is taxed at that bracket's rate. Each "slice" of your income gets taxed independently.
Imagine you're a single filer with $80,000 of taxable income (after standard deduction). Your tax isn't 22% × $80,000. It's:
- The first $11,600 is taxed at 10% → $1,160
- The next $35,550 ($11,601 to $47,150) is taxed at 12% → $4,266
- The next $32,850 ($47,151 to $80,000) is taxed at 22% → $7,227
Total federal income tax: $12,653.
That's an effective rate of 15.8%, even though the marginal rate (the rate on your last dollar) is 22%.
Marginal vs. effective rate
This distinction is the single most useful concept in personal taxes:
- Marginal rate = the rate on the next dollar you earn. For our $80K example, that's 22%.
- Effective rate = total tax divided by total income. For our $80K example, that's 15.8%.
Your marginal rate is what matters for decisions — should I do that side gig, max my 401(k), defer that bonus? Your effective rate is what matters for budgeting — what fraction of my income will I actually pay in tax this year?
Crossing brackets is fine
Suppose you got a $1,000 raise from $80,000 to $81,000, all of which is taxed at the 22% rate. You pay $220 more in federal tax. Your take-home goes up by $780. You always come out ahead.
The myth that crossing into a new bracket can cost you money usually traces back to one of two real things:
- Phase-outs of credits or deductions. Some tax credits (like the Earned Income Tax Credit) phase out at specific income levels. Crossing certain thresholds can cause you to lose them, which can produce odd, brief "negative slopes" in net income.
- Means-tested benefits. Income limits for things like ACA marketplace subsidies or income-based loan repayment can produce sharp cliffs unrelated to the income tax brackets themselves.
But for the brackets themselves? Each new bracket only ever taxes the next slice of income at the higher rate.
Standard deduction and what's "taxable"
Brackets apply to taxable income, not gross income. The 2025 standard deduction is:
- Single: $14,600
- Married filing jointly: $29,200
- Head of household: $21,900
If you earn $95,000 single and take the standard deduction, your taxable income is $80,400 — and the brackets above apply to that $80,400, not the full $95,000.
You only itemize if your itemized deductions (mortgage interest, state and local taxes capped at $10,000, charitable donations, certain medical expenses) total more than the standard deduction. After the 2017 TCJA raised the standard deduction, the share of taxpayers itemizing dropped from about 30% to under 10%.
How this fits with state tax and FICA
Federal income tax isn't the only federal-level tax on wages. You'll also pay:
- Social Security: 6.2% on wages up to $168,600 (the 2025 wage base).
- Medicare: 1.45% on all wages, plus an additional 0.9% above $200,000 (single) or $250,000 (married).
Together these are FICA. They're not part of the income tax brackets and they're not reduced by the standard deduction.
State income tax then adds another layer (or doesn't, if you live in one of the 9 states with no income tax).
Try it yourself
Use our income tax calculator to plug in your own numbers and see the bracket-by-bracket breakdown. For the full picture including FICA and state tax, the salary calculator shows what actually lands in your paycheck.
Tax year 2025 brackets are used for income earned in 2025 and reported on the return you file by April 2026. The IRS releases each year's brackets the prior fall.